Exercise apparatus



FIG. 1 is a perspective view of an exercise apparatus, showing my new design with a clamp in a clamped position around a barbell;

FIG. 2 is an enlarged top perspective view thereof, the clamp in a partially open position;

FIG. 3 is a bottom perspective view of FIG. 2 ;

FIG. 4 is a front elevational view of FIG. 2 ;

FIG. 5 is a rear elevational view of FIG. 2 ;

FIG. 6 is a right-side elevational view of FIG. 2 ;

FIG. 7 is a left-side elevational view of FIG. 2 ;

FIG. 8 is a bottom plan view of FIG. 2 ; and

FIG. 9 is a top plan view of FIG. 2 .

The evenly spaced broken lines depict enviornmental structure that forms no part of the claimed design. 

CLAIM The ornamental design for an exercise apparatus, as shown and described. 